Are we sure "OS" here meant "open source"? I read the comment you are replying to as "operating system"--particularly within the context that the project being

Are we sure "OS" here meant "open source"? I read the comment you are replying to as "operating system"--particularly within the context that the project being discussed is Mbed OS--and when I started reading your reply I had to do a double-take as I found the wording "if it's [Operating System]" extremely confusing.